<h1>overview:</h1>

@{all_books}

<p>Number of items: ${all_books_data.count}</p>
<p>Is it a single item: ${all_books_data.single}</p>
<p>First item: ${all_books_data.first}</p>
<p>Last item: ${all_books_data.last}</p>
<p>All items: ${all_books_data.all}</p>
